how many mcg in a b12 injection Vitamin B-12 Cyanocobalamin b12 injection weekly dosage B12

I'm now in my 50s and they are starting to get a bit irregular but in terms of pain - used to be bad when I was younger but started taking an iron supplement when I was in my 30s and that seemed to sort things out

Cohens d was 0.07 for IM vs SL routes, 0.06 for oral vs IM routes, and 0.22 for oral vs SL routes

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The latter is better, but we recommend methylcobalamin, as it includes a methyl group and directly aids in lowering homocysteine levels and in fixing nerve damage, two issues often faced by pernicious anemia and B12 deficiency patients